Kodak Retina Reflex IV Camera Serial # EK 711090 (made from 1964-1966) with Retina-Xenon f/1.9 50mm Lens.  Small window added to front of pentaprism housing to display selected f/stop and shutter speed in viewfinder.  This is a much improved Retina over previous models. Four additional lenses are included.  They are as follows:  28mm f/4, Retina -Curtagon Schneider - Kreuznach;  35mm f/2.8, Retina Curtigon Schneidr - Kreuznach;  85mm f/4, Retina Tele Arton Schneider Kreuznach;  135mm f/4, Retina - tele - Xenar Schneider - Kreuznach.     The camera and lenses appear to have been used and show some scratches from normal use.  The 50mm has some scratches on the glass; and you may find some small flaws upon using a strong light and magnifier.  The shutter works and the diaphragm is clean. The lenses are 50-years old and may have some haze.  I can't see any but you may.  This is a very nice collection but not new in the box.  Comes with instruction book and leather strap.  Also has built in meter and hot shoe. Selling as is. Please send me questions; I will answer promptly.